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Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Aug 11, 2023 · Frontend Development

Deep Dive into React useEffect and useLayoutEffect: Data Structures, Lifecycle, and Implementation Details

This article explains how React manages side‑effects with useEffect and useLayoutEffect, covering the underlying Effect data structure, the mount and update phases, the commit pipeline (before‑mutation, mutation, layout), and the differences in timing and execution between the two hooks.

HooksJavaScriptfrontend
0 likes · 28 min read
Deep Dive into React useEffect and useLayoutEffect: Data Structures, Lifecycle, and Implementation Details
Fulu Network R&D Team
Fulu Network R&D Team
Aug 10, 2020 · Frontend Development

Understanding the Execution Timing of useEffect and useLayoutEffect in React

This article explains the differences in execution timing between React's useEffect and useLayoutEffect hooks, analyzes their underlying mechanisms, demonstrates practical demos with performance monitoring, and delves into React's rendering process, scheduler, and related browser rendering concepts.

HooksPerformancebrowser rendering
0 likes · 12 min read
Understanding the Execution Timing of useEffect and useLayoutEffect in React